Yes, that's tongue in cheek, but is still to say that unless you quite specifically need a 2018 LaTeX package or something, just don't worry about it.Ģ is 2 due to that PPA being a trusted PPA Personal Package Archives that are well run are 'as good as' distribution repositories. Not 1 due to needing to verify said trusted state. 3 is 3 due to you already having it at this point and, well, and all.